scholarly journals Humidity effects on response ofArgas persicus (Oken) to guanine, an assembly pheromone of ticks

1989 ◽  
Vol 15 (3) ◽  
pp. 791-797 ◽  
Author(s):  
A. Hassanali ◽  
E. Nyandat ◽  
F. A. Obenchain ◽  
D. A. Otieno ◽  
R. Galun
Keyword(s):  
Assembly Pheromone ◽  
Humidity Effects

scholarly journals Relative Humidity Effects on Tolerance of the Kuruma Prawn Exposed to 14°C Air

1997 ◽  
Vol 63 (2) ◽  
pp. 194-198
Author(s):  
Maher Samet ◽  
Kaworu Nakamura
Keyword(s):  
Relative Humidity ◽  
Humidity Effects

scholarly journals Statistical Evaluation of Total Expiratory Breath Samples Collected throughout a Year: Reproducibility and Applicability toward Olfactory Sensor-Based Breath Diagnostics

Sensors ◽  
2021 ◽  
Vol 21 (14) ◽  
pp. 4742
Author(s):  
Katsushige Inada ◽  
Hiroshi Kojima ◽  
Yukiko Cho-Isoda ◽  
Ryo Tamura ◽  
Gaku Imamura ◽  
...  
Keyword(s):  
Statistical Evaluation ◽  
Target Material ◽  
Health Condition ◽  
Exhaled Breath ◽  
Humidity Effects ◽  
Signal Features ◽  
Volatile Organic ◽  
Olfactory Systems ◽  
Membrane Type ◽  
Robust Protocol

The endogenous volatile organic compounds (VOCs) in exhaled breath can be promising biomarkers for various diseases including cancers. An olfactory sensor has a possibility for extracting a specific feature from collective variations of the related VOCs with a certain health condition. For this approach, it is important to establish a feasible protocol for sampling exhaled breath in practical conditions to provide reproducible signal features. Here we report a robust protocol for the breath analysis, focusing on total expiratory breath measured by a Membrane-type Surface stress Sensor (MSS), which possesses practical characteristics for artificial olfactory systems. To assess its reproducibility, 83 exhaled breath samples were collected from one subject throughout more than a year. It has been confirmed that the reduction of humidity effects on the sensing signals either by controlling the humidity of purging room air or by normalizing the signal intensities leads to reasonable reproducibility verified by statistical analyses. We have also demonstrated the applicability of the protocol for detecting a target material by discriminating exhaled breaths collected from different subjects with pre- and post-alcohol ingestion on different occasions. This simple yet reproducible protocol based on the total expiratory breath measured by the MSS olfactory sensors will contribute to exploring the possibilities of clinical applications of breath diagnostics.

The seabird tick, Ixodes uriae, uses uric acid in penguin guano as a kairomone and guanine in tick feces as an assembly pheromone on the Antarctic Peninsula

Polar Biology ◽  
2008 ◽  
Vol 31 (12) ◽  
Author(s):  
Joshua B. Benoit ◽  
Giancarlo Lopez-Martinez ◽  
Seth A. Philips ◽  
Michael A. Elnitsky ◽  
Jay A. Yoder ◽  
...  
Keyword(s):  
Uric Acid ◽  
Antarctic Peninsula ◽  
Assembly Pheromone ◽  
Ixodes Uriae ◽  
The Antarctic
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